CHAPTER 9 CELLULAR RESPIRATION: HARVESTING CHEMICAL …

First, pyruvate is converted to a two-carbon compound, acetaldehyde by the removal of CO2. Second, acetaldehyde is reduced by NADH to ethanol. Alcohol fermentation by yeast is used in brewing and winemaking. During lactic acid fermentation, pyruvate is reduced directly by NADH to form lactate (ionized form of lactic acid). ................
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